28091440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27011}}^1$

素因数の和:27037

約数の個数: 40

約数和(自身を含む): 70339248

約数和(自身を除く): 42247808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27011, 54022, 108044, 135055, 216088, 270110, 351143, 432176, 540220, 702286, 1080440, 1404572, 1755715, 2160880, 2809144, 3511430, 5618288, 7022860, 14045720, 28091440]

約数ペア:

[(1, 28091440), (2, 14045720), (4, 7022860), (5, 5618288), (8, 3511430), (10, 2809144), (13, 2160880), (16, 1755715), (20, 1404572), (26, 1080440), (40, 702286), (52, 540220), (65, 432176), (80, 351143), (104, 270110), (130, 216088), (208, 135055), (260, 108044), (520, 54022), (1040, 27011)]